80679620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{311}}^1$

素因数の和:453

約数の個数: 96

約数和(自身を含む): 207567360

約数和(自身を除く): 126887740

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 109, 119, 140, 170, 218, 238, 311, 340, 436, 476, 545, 595, 622, 763, 1090, 1190, 1244, 1526, 1555, 1853, 2177, 2180, 2380, 3052, 3110, 3706, 3815, 4354, 5287, 6220, 7412, 7630, 8708, 9265, 10574, 10885, 12971, 15260, 18530, 21148, 21770, 25942, 26435, 33899, 37009, 37060, 43540, 51884, 52870, 64855, 67798, 74018, 105740, 129710, 135596, 148036, 169495, 185045, 237293, 259420, 338990, 370090, 474586, 576283, 677980, 740180, 949172, 1152566, 1186465, 2305132, 2372930, 2881415, 4033981, 4745860, 5762830, 8067962, 11525660, 16135924, 20169905, 40339810, 80679620]

約数ペア:

[(1, 80679620), (2, 40339810), (4, 20169905), (5, 16135924), (7, 11525660), (10, 8067962), (14, 5762830), (17, 4745860), (20, 4033981), (28, 2881415), (34, 2372930), (35, 2305132), (68, 1186465), (70, 1152566), (85, 949172), (109, 740180), (119, 677980), (140, 576283), (170, 474586), (218, 370090), (238, 338990), (311, 259420), (340, 237293), (436, 185045), (476, 169495), (545, 148036), (595, 135596), (622, 129710), (763, 105740), (1090, 74018), (1190, 67798), (1244, 64855), (1526, 52870), (1555, 51884), (1853, 43540), (2177, 37060), (2180, 37009), (2380, 33899), (3052, 26435), (3110, 25942), (3706, 21770), (3815, 21148), (4354, 18530), (5287, 15260), (6220, 12971), (7412, 10885), (7630, 10574), (8708, 9265)]